JPH0127481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a simple record player, and more particularly, to a simple record player in which a record is fixed and a playback needle rotates together with a turntable, the record is held in a record holding section of the simple record player. Before placing the record in the record holder of the simple record player, the playback needle enters the boss recess in the center of the turntable and is covered. The pusher is pushed by a protruding rod provided in the center of the record, and the pusher moves forward along the center pin, and uses the action of the slope to push the tone arm carrying the playback needle out of the boss. The reproduction needle is made to face the recording surface of the record, thereby eliminating the danger (design defect) due to exposure of the reproduction needle.

Conventionally, simple record players have been provided in which a playback needle rotates together with a turntable, and a record is fixed so as to face the playback needle. For example, JP-A-53-25402 and JP-A-53
−25404 and U.S. Patent No.
The invention taught in the specifications and drawings of No. 4118038 and No. 4123065 is a typical simple record player of this type.

In the case of these conventional examples, the playback needle, which is placed upward so as to face the recording surface of the record placed downward, is covered by the record holder which is pivotally attached to the upper surface of the casing. The regenerated needle is not exposed and the user cannot be injured by the regenerated needle. but,
Since records are held by being inserted into a record holder through a slit opened at the front end of the record holder, this is especially true when the record player is used as a toy and the user is a small child.
The operation of inserting a record through the slit that opens at the front end of the holder is cumbersome. Therefore, the inventor intended to develop a simple record player that can be operated by simply inserting a record into a holder from above the casing. However, in this case, if the record is not held in the record holding part of the casing, the playback stylus may be exposed in the record holding part, potentially injuring the user, resulting in the problem of so-called design defect. .

This invention primarily addresses such problems.

SUMMARY OF THE INVENTION An object of the present invention is to provide a simple record player that can play recorded contents by simply inserting a record into a record holding section from above; A simple record player in which the playback stylus is hidden when the record is not held in the record holder, and the playback stylus appears at a position facing the recording surface of the record when the record is held in the record holder, eliminating danger. A further object of the present invention is to provide a simple record player that can easily select and reproduce recorded contents of a record having a plurality of recording grooves.

That is, as shown in the embodiment of the accompanying drawings, this application integrally includes a record holder 4 that holds a record 3 so as not to rotate with the recording groove 2 facing inside the casing 1, and a speaker 5 placed back to back on the back side. , and a turntable 8 supported by a center pin 6 erected in the casing 1 by a center pin receiving sleeve 7 in an axially movable state.
, a vibrating piece 9 for speaker vibration extending along the sleeve 7 for receiving the center pin of the turntable 8 and extending toward the upper surface of the turntable 8 without contacting the sleeve 7; , and a sound transmission rod 10 whose midway portion is joined to the vibrating piece 9 to substantially communicate with the speaker, and a sound transmission rod 10 which is pivotally mounted on the same turntable 8 and whose playback needle 11 is directed toward the record 3. It has a tone arm 12 which is supported in contact with the sound transmission rod 10 and can rotate while sliding thereon, and the turntable 8 is connected to a motor 13, and the turntable 8 is constantly connected to the record 3 by a spring 14. In a simple record player which is biased toward the recording surface of
b. The tone arm 12 has a boss 18 which is higher than the tip of the tone arm 1 and has a recessed part 15 for accommodating the regenerating needle 11 on the side surface thereof, and a guide hole 16 formed in the center of the upper surface. The regenerated needle 1
The record 3 is always urged by a turn spring 19 in the direction of the boss 18 so that the record 3 enters the recess 15, and c. A recess 20 for receiving at least an upper portion of the rod 2 is inserted into the guide hole 16 on the upper surface of the boss 18 at the center of the recess 20.
1 has a configuration in which each record is formed, and d the record holding section 4 has the record 3
A locking mechanism 22 is provided for fixing the record 3 in the axial direction.
A pusher 23 is provided which advances along the slope f, and the pusher 23 moves forward along the slope 24 after the record 3 is placed on the record holder 4 and before being fixed by the locking mechanism 22. It has a protrusion 25 that pushes out the tone arm 12 from the recess 15 against the bias of the turn spring 19, and g is pushed out from the recess 15 and onto the recording surface of the record 3. The stylus force of the anastomosed playback needle 11 is applied to the spring 14 that urges the turntable 8 toward the recording surface of the record 3.
and the structure is guaranteed by cooperation with the record 3 fixed to the record holding part 4, and furthermore, the recording groove 2 is directed inside the casing 1 to prevent the record 3 from rotating. record holding unit 4 held in
and integrally have speakers 5 back to back on the back side,
In addition, a center pin 6 erected within the casing 1
a turntable 8 supported in an axially movable state by a center pin receiving sleeve 7;
Vibration piece 9 for speaker vibration extended toward the top surface
and a sound transmission rod 10 which is suspended horizontally on the turntable 8 and whose midway portion is joined to the vibrating piece 9 to substantially communicate with the speaker, and which is pivotally mounted on the turntable 8, The turntable 8 is driven by a rim drive system, and has a tone arm 12 which is supported in contact with the sound transmission rod 10 so as to direct the playback needle 11 toward the record 3 and can rotate while sliding on the sound transmission rod 10. This is connected to an electric motor 13 having an output shaft S connected to the turntable 8 so that it can be raised and raised, and the turntable 8 is always biased toward the recording surface of the record 3 by a spring 14. In the simple record player, a. The playback needle 1 is placed in the center of the turntable 8.
The regenerated needle 1 is higher than the tip of the needle 1 and on the side.
b. The tone arm 12 has a recessed part 15 for accommodating the regenerated needle 1, a guide hole 16 at the center of the upper surface, and a boss 18 formed therein; b.
The record 3 is always urged by a turn spring 19 in the direction of the boss 18 so that the record 3 enters the recess 15, and c. A recess 20 for receiving at least an upper portion of the rod 2 is inserted into the guide hole 16 on the upper surface of the boss 18 at the center of the recess 20.
1 has a configuration in which each record is formed, and d the record holding section 4 has the record 3
A locking mechanism 22 is provided for fixing the record 3 in the axial direction.
A pusher 23 is provided which advances along the slope f, and the pusher 23 moves forward along the slope 24 after the record 3 is placed on the record holder 4 and before being fixed by the locking mechanism 22. It has a protrusion 25 that pushes out the tone arm 12 from the recess 15 against the bias of the turn spring 19, and g is pushed out from the recess 15 and onto the recording surface of the record 3. The stylus force of the anastomosed playback needle 11 is applied to the spring 14 that urges the turntable 8 toward the recording surface of the record 3.
and a spring 14 that biases the turntable 8 toward the recording surface of the record 3.
is connected to the electric motor 13 so that the side circumferential surface of its output shaft S comes into elastic contact with the turntable 8 from behind, i. It is turned on when the turntable 8 is pushed and tilted, and the record 3
is removed from the record holder 4 and the stylus pressure is released, and the start switch 30 is turned off when the pressure on the turntable 8 is released. When the record 3 is removed from the record holder 4 and the stylus pressure is released, the tone arm 12 moves toward the recessed part 15 and is turned on. Stop switch 3
A structure containing 1 and 1 is considered a combined invention.

In this invention, a pusher attached to the center pin so as to be able to move back and forth in the axial direction is pushed by a protrusion provided at the center of the record fixed to the holder of the casing, and the pusher is pushed by the pusher that is attached to the center pin so that it can move back and forth in the axial direction. The playback needle of the tone arm housed in the recessed portion is pushed and moved so as to face the recording surface of the record by the action of the needle surface. When the turntable rotates and playback ends and the record is removed from the record holder, the stylus pressure is released and the tone arm, along with the playback stylus, moves into the recessed part by the force of the turns spring. Return.

Further, in the present invention, various drive systems can be used for the turntable, and therefore, an electric motor, a spring motor, etc. can also be used for the motor. but,
Most preferably, as in the embodiments described later, a rim drive type is used, and an electric motor is used as the drive source. In this case, a rim is provided on the back surface of the turntable, and the output shaft of the electric motor is exposed to the rim, and the electric motor is pivotally supported by a trunnion. The electric motor is biased by a spring so that its output shaft presses the turntable through its rim toward the recording surface of the record. Thus, the spring becomes a stylus pressure spring.

The pusher also pushes the turntable, causing it to move along the center pin and against the spring. Therefore, when a record is fixed to the record holding part of the casing, the electric motor pivots against the spring, and in connection with the pivoting of the electric motor, the start switch is turned on and the electric motor starts running. It operates and rotates the turntable. When the tone arm reaches the end of playback, it pushes a lever located along the outer periphery of the turntable, turning off the stop switch. Since the stop switch lever extends along the periphery of the turntable, the stop switch can maintain its off state even if the turntable overruns to some extent due to inertia. When the record is removed from the record holding section, the stylus pressure is released, the tone arm returns to the playback starting point (center of the record), and the stop switch is turned on. However, if the record is not fixed in the record holding section, the start switch is off, so playback will not start.

Since this invention has such a configuration, the playback needle is covered when the record is not fixed to the record holder, and there is no risk of injury to the user, and the record is simply fixed to the record holder. Just by doing this, the playback needle moves to a position facing the recording surface of the record.

If the drive source is an electric motor, the electric motor can be started simply by fixing the record to the record holder, and when the playback needle reaches the end of playback, the tone arm opens the stop switch. Since the tone arm opens the stop switch via a lever extending along the tone arm, it is possible to automatically start and end playback easily and reliably.

Embodiment As shown in FIG. 1, a casing 1 of this simple record player has an upper half 1a and a lower half 1b combined to form a single box.

The upper half 1a of this casing has, on its upper surface,
A record holding section 4 is established. The edge of the record holding section 4 is slightly raised to form a guide edge. The inner surface of the inner part of the record holding section 4 has a tapered top and bottom surface, and is tapered toward the center of the record holding section 4 by a spring (not shown). A latch mechanism 22 is provided with a claw that is biased and held movably forward and backward.

In the figure, 3 is a record, which has a figure knob 3a shaped like an appropriate object on its top surface, and a mark 3 corresponding to the introduction part of the recording groove described later.
b, and the side circumferential surface thereof is formed to have a large thickness depending on the height of the guide edge of the record holding part 4, and the record holding part 4 has a record holding part 4 with a large thickness, and a record holding part 4 is placed on the upper end of the guide edge. A step portion 3c and a latching groove 3d for engaging the pawl at the lower part are provided.

Note that 8 in the figure is a turntable, and a hollow boss 18 is formed in the center thereof. The turntable 8 has a face plate 8a on its upper surface,
This face plate 8a has a long hole 8b for guiding a regenerated needle.
It is opened from the root of the boss 8 to just before the periphery of the face plate. The long hole 8 is formed on the side circumferential surface of the boss 8.
Continuing from the inner end of b, a recessed portion 15 that communicates with the inside of the boss 18 is open. In this diagram,
It can be seen that the regeneration needle 11 carried by the tone arm 12 is housed in the recessed part 15.

A guide hole 16 is formed in the center of the boss 18.

VR in the figure is a variable resistor, and the rotation speed of the turntable 8 can be adjusted by sliding its knob to change the electrical resistance value to the electric motor, which will be described later. The record 3 is fitted and fixed into the record holder 4 as shown by the arrow, and its recording surface side is constructed as shown in FIG. 3.

That is, in the case of this embodiment, four recording grooves 2
is engraved. In this recording groove 2, an introduction part (playback start point) is located at the center of the record 3, and a playback end point is located at the periphery of the record 3.

The center portion of the record 3 is formed into a recess 20 that receives the boss of the turntable, and a protrusion 21 is formed at the center thereof. This rod 21
has a diameter that allows it to be inserted into the guide hole 16 formed at the center of the boss 18 of the turntable.

FIG. 2 shows the inside of the lower half 1b by removing the upper half of the casing 1, and FIG. 5 is a cross-sectional view taken longitudinally through the center of the casing 1.
Now, according to Figures 2 and 5, casing 1
Explain the internal structure of.

That is, as shown in FIG. 5, a center pin 6 having a length reaching the top of the upper half 1a of the casing 1 is erected at the center of the lower half 1b of the casing 1.

A turntable 8 as described above is supported by the center pin 6 so as to be rotatable and movable in the axial direction by a center pin receiving sleeve 7 provided at the center thereof.

The turntable 8 has an upper and lower double structure, and a face plate 8a is supported by a support 8d so as to maintain a distance from the base 8c. A side plate is provided hanging down on the back side of the base 8c of the turntable 8,
The speaker 5 is held therein in a back-to-back manner with the face plate 8a. A diaphragm 5a is arranged at the center of the speaker 5 and surrounds the center pin receiving sleeve 7 without contacting it. A vibrating piece 9 that protrudes from is fixed. This vibrating piece 9 is connected to a sound transmission rod 10 horizontally suspended on the base 8c so as to be supported from below.

FIG. 4 clearly shows how the sound transmission rod 10 is suspended horizontally on the base 8c of the turntable 8. Further, according to FIG. 4, a tone arm 12 is pivotally attached at one end to the surface of the base 8c on the back surface of the face plate 8a, and the other end is connected to an upward regeneration needle 11.
is supported on the sound transmission rod 10.
A turn spring 19 acts on the pivoted end of the tone arm 12, and the playback needle 11 is urged toward the center of the turntable 8. Therefore, the tone arm 12 is
It moves by sliding on the sound transmission rod 10. Regeneration needle 1
The reproduced vibration of No. 1 is transmitted to the speaker 5 through the sound transmission rod 10 and the vibrating piece 9, and is amplified.

As is clear from FIGS. 4 and 5, the tip of the other rotating end of the tone arm 12 is bent toward the circumferential edge of the turntable 8, and when the reproduction needle 11 is at the reproduction end point, it is connected to the substrate 8c. It projects outward from between it and the face plate 8a (the position indicated by the dashed line in FIG. 5).

As shown in FIG. 5, the board 8 of the turntable 8
c On the surface side, a pusher 23 having a protrusion 25 having a conical slope 24 facing toward the substrate 8c at the tip thereof is provided on the center pin 6 so as to be movable back and forth so as to face the center pin receiving sleeve 7 at its end. and is supported in a direction away from the substrate 8c with a support spring 40 interposed therebetween. The rear end of the pusher 23 is guided into the guide hole 16 of the boss 18.

As shown in FIG. 5, a slope 24 opposite to the slope 24 of the pusher is formed near the regeneration needle 11 of the tone arm 12, and the regeneration needle 11 is connected to the boss 18.
Both slopes 24,
24 can be joined.

FIG. 5 shows a state in which the record 3 is held by the record holding part 4 of the casing 1 and is fixed by engaging the latching groove 3d with the latching mechanism 22.
In this case, as described above, the protrusion 21 of the record 3 enters the guide hole 16, which pushes the pusher 23 against the support spring 40 and moves it forward.

The tone arm 12 carrying the playback needle 11 is pushed out from the recessed part 15 to a position facing the recording surface of the record 3 by the action of the slope 24 just before the record 3 is fixed, and the arrangement is completed. .
As can be seen from FIG. 5, the turntable 8 has a rim 8g facing toward the back side and further away from the outer periphery of the substrate 8c. It is constructed of wear-resistant rubber.

As can be understood from FIGS. 2, 4, and 5, the output shaft S of the electric motor 13, which is supported by a trunnion 13a, is connected to the rim 8g so as to intersect with the rim 8g. The electric motor 13 has a caudal rod 13b at the rear thereof, and receives a leaf spring 14 fixed in a cantilever manner in the casing 1, so that the output shaft S comes into elastic contact with the rim 8g, and the entire turntable 8 is elastically transferred to the recording surface of record 3. When the record 3 is fixed to the record holder 4, the playback needle 11 is already facing the recording surface of the record 3 as described above, so the record 3 is moved to the position where the record 3 is fixed.
When pressed, the record 3 pushes the turntable 8 through the playback needle 11 against the force of the leaf spring 14 and causes it to retreat. As a result, needle pressure is applied to the regeneration needle 11, and at the same time, the electric motor 13
resists the bias of the leaf spring 14, and its output shaft side tilts. A jaw 13c is provided on the output shaft side of the electric motor 13, and a movable contact 30a of the start switch 30 is supported at the tip of the jaw 13c. A fixed contact 30b made of a leaf spring is disposed opposite to the movable contact 30a as another contact of the start switch 30. The start switch 30 is off before the record 3 is fixed to the record holding section 4, and is turned on when the record 3 is fixed to the record holding section 4.

As shown in FIG. 2, a fixed contact 30b of the start switch 30 is connected to a movable contact 31a of a stop switch 31 provided near the turntable 8. Fixed contact 31 of stop switch 31
b is connected to the battery (B in Figure 5) below the variable resistor VR.

As is clear from Figure 2, the variable resistor VR
is connected to the electric motor 13 via a resistor _{VR 1} connected to the other pole of the battery, a sliding connector VR ₂ , and a conducting wire VR ₃ parallel to the resistor VR 1 .

As shown in FIGS. 2 and 4, a lever device 41 is provided near the stop switch 31. That is, in the lever device 41, a pivot piece 41b is pivotally attached to a vertical pivot 41a, and a movable contact 31a of the stop switch 31 is connected to a fixed contact 3 at one end of the pivot piece 41b.
It has a pin 41c that acts to separate it from 1b,
A lever 41d that extends along the outer peripheral edge of the turntable 8 is provided at the opposite end of the turntable 8 via the vertical axis 41a at the side of the height of the space between the base plate 8c and the face plate 8a of the turntable 8. have. And, this lever device 41 always has its pin 41
c is separated from the movable contact 31b, and the lever 41d is biased by a spring 41e and regulated by a stopper 41f so that it is at a certain distance from the outer peripheral edge of the turntable 8.

Regarding this lever device 41, see also FIG.
A modification as shown in FIG. 7 is also available. That is, in the case of FIG. 6, the pivot 41a is held horizontally, and the lever 41d is provided so as to be inclined along the outer periphery of the turntable 8 so as to diagonally cross the gap between the face plate 8a and the base plate 8c, and is used as a stop switch. 31 movable contacts 31a are attached to the opposite side of the lever 41d. Thus, when the tone arm 12 is at the playback end point, its tip touches the face plate 8a and the substrate 8.
When the turntable 8 is rotating in the direction of the arrow with the turntable 8 protruding outward from the gap between Leave. Note that 41e is a spring that elastically supports the lever 41d in a predetermined position.

In the case of FIG. 7, the lever 41d of the lever device 41
is pivotally supported by trunnions 50, 50 provided at the lower part of both ends of the turntable 8 so as to extend along the outer periphery of the turntable 8 at the height of the distance between the base plate 8c and the face plate 8a. Ru. A pin 41c is provided protruding from the lower edge of the lever 41d. Thus, when the tone arm 12 pushes the lever 41d, the pin 41c rotates. Stop switch 3
When the pin 41c is not in contact, the movable contact 31a of No. 1 is in contact with the fixed contact 31b and is in an on state, and when the pin 41c is rotated by pressing the lever of the tone arm 12, it is separated from the fixed contact 31b. It will turn off. Note that 41e is a spring that elastically supports the lever 41d at a predetermined position.

The simple record player of this embodiment operates as follows.

When the record 3 is inserted into the record holding portion 4 of the casing 1, the protrusion 21 provided on the record 3 pushes the pusher 23 whose upper end is disposed within the guide hole 16 at the center of the boss 18 of the turntable 8 to move it forward. . The slope 24 provided on the projection 25 of the pusher 23 slides the tone arm 12 onto the slope 24 on the tone arm side and pushes the tone arm 12 out of the recess 15 to a position where the playback needle 11 faces the recording surface of the record 3. Then, when the record 3 is fixed by the latching mechanism 22, the recording surface of the record 3 and the playback needle 11 are anastomosed, and the record 3 moves the turntable 8 via the playback needle 11 to the leaf spring 14. Press and move against the Thus, at the same time that stylus pressure is applied to the regeneration needle 11, the electric motor 13 is tilted via the output shaft S, bringing the movable contact 30a of the start switch 30 into contact with the fixed contact 30b, and the start switch 30 is turned on. Thus, the electric motor 13 is activated and the turntable 8 is rotated. The reproducing needle 11 fits into the first joined recording groove 2 while rotating and reaches the end point of reproduction. Therefore, the record 3 can select a desired one of the plurality of recording grooves 2 by selecting the phase angle to be fixed to the record holding section 4. When the playback needle 11 reaches the playback end point and the tip of the tone arm 12 protrudes radially outward from the outer peripheral edge of the turntable 8, the rotation of the turntable 8 hits the lever 41d of the lever device 41, which is pressed and activated. let As a result, the stop switch 31
The movable contact 31a is separated from the fixed contact 31b, and the stop switch 31 is turned off. Thus, the power to the electric motor 13 is cut off, and since the lever 41d extends along the outer periphery of the turntable 8, even if the turntable 8 tries to overrun due to inertia, the stop switch 31
can maintain the off state, and the lever 41
The turntable 8 is braked by the friction between the tone arm 12 and the tone arm 12. When the record 3 is removed from the record holder 4, the stylus pressure is released, the turntable 8 returns to its original position along the center pin 6, and the tone arm 12 is moved toward the playback start point by the turn spring 19. Returning to Boss 1
It is housed in a recess 15 provided at 8. At this time, the stop switch 31 is turned on, but the start switch 30 is turned off as the turntable 8 and the electric motor 13 return to their original positions, so the electric motor 13 does not operate. The reactivation of the electric motor 13 for regeneration is performed by the record 3 as described above.
This can be done by fixing it to the record holding section 4.

In this embodiment, when the record is not held in the casing, the playback stylus is housed in the recess and is substantially hidden, and when the record is secured to the casing for playback, the playback stylus is is designed to automatically face the recording surface and anastomose. Therefore, the danger is eliminated while maintaining the advantage of easy operation.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a simple record player according to the present invention, Fig. 2 is a perspective view showing the inside of the casing with the upper half removed, Fig. 3 is a perspective view showing the back side of the record, and Fig. 4 is the casing. FIG. 5 is a longitudinal cross-sectional view of the central portion; FIG. 6 is a stop switch of another embodiment;
FIG. 7 is a front view of the lever device and a perspective view of yet another stop switch and lever device. In the figure, 1 is the casing, 2 is the recording groove, 3 is the record, 4 is the record holder, 5 is the speaker, 6 is the center pin, 7 is the center pin receiving sleeve, 8
is a turntable, 9 is a vibrating piece, 10 is a sound transmission rod,
11 is a reproduction needle, 12 is a tone arm, 13 is a motor, 14 is a spring, 15 is a recessed part, 16 is a guide hole, 18 is a boss, 19 is a turn spring, 2
0 is a recess, 21 is a protrusion, 22 is a locking mechanism, 23 is a pusher, 24 is a slope, 25 is a protrusion, S is an output shaft, 30 is a start switch, 31 is a stop switch, and 41d is a lever.

Claims (1)

[Scope of Claims] 1. A record holding part that holds the record so as not to rotate with the recording groove facing inside the casing, and speakers that are integrally arranged back to back on the back side, and a center pin that stands up inside the casing. A turntable supported in an axially movable state by a center pin receiving sleeve, and a speaker vibration installed along the center pin receiving sleeve of the turntable and extending toward the top surface of the turntable without contacting it. a sound transmission rod that is suspended horizontally on the turntable, and whose midway portion is joined to the vibration piece to substantially communicate with the speaker;
The tone arm is pivotally mounted on the turntable, and has a tone arm that is supported in contact with the sound transmission rod so as to be able to rotate while sliding on the sound transmission rod, with the playback needle facing the record, and connecting the turntable to the motor. and in a simple record player in which the turntable is always biased toward the recording surface of the record by a spring, a. the playback needle is located in the center of the turntable, higher than the tip of the playback needle, and on the side; A recessed part for accommodating the
b) the tone arm is always biased by a turn spring in the direction of the boss so that the playback needle thereof enters the recess; c) the record is a recess for receiving at least the upper part of the boss of the turntable is formed in the center, and a protrusion that is inserted into the guide hole on the upper surface of the boss is formed in the center of the recess, d. The holding part is provided with a locking mechanism for fixing the record in the axial direction, e. The center pin has a pusher that is pushed by the protrusion of the record and moves forward along the center pin. f. The pusher is configured to bias the tone arm by the action of the slope of the turn spring after the record is placed in the record holder and before it is fixed by the latching mechanism. g. The stylus force of the playback stylus pushed out from the recess and anastomosed to the recording surface of the record causes the turntable to move into the recording surface of the record. A structure ensured by cooperation between the spring biased toward the surface and the record fixed to the holding part. 2. The simple record player according to claim 1, wherein the record has a thickness such that the record protrudes from the casing while being fixed to the record holder. 3. The record has multiple recording grooves, and by aligning their playback guides with the position of the playback needle,
A simple record player according to claim 1, which is capable of reproducing desired recorded content. 4 It has a record holding part that holds the record so that it does not rotate with the recording groove facing inside the casing, and a speaker that is placed back to back on the back side, and a center pin that is installed upright inside the casing with a center pin receiving sleeve. a turntable supported so as to be movable in the axial direction; a vibrating piece for speaker vibration extending along a sleeve for receiving a center pin of the turntable and extending toward the top surface of the turntable without contacting the sleeve; a sound transmission rod that is suspended horizontally on the turntable, and whose midway portion is joined to the vibrating piece to substantially communicate with the speaker;
The tone arm is pivotally mounted on the turntable, and is supported in contact with the sound transmission rod so as to be able to rotate while sliding on the sound transmission rod, with the playback needle facing the record. A simple record player, which is connected to an electric motor having an output shaft connected to a turntable and arranged so as to be able to be raised and raised, and wherein the turntable is always biased toward the recording surface of a record by a spring. a. A recessed part for accommodating the regenerated needle in the center of the turntable, which is higher than the tip of the regenerated needle and on the side surface, and a guide hole in the center of the upper surface,
b) the tone arm is always biased by a turn spring in the direction of the boss so that the playback needle thereof enters the recess; c) the record is a recess for receiving at least the upper part of the boss of the turntable is formed in the center, and a protrusion that is inserted into the guide hole on the upper surface of the boss is formed in the center of the recess, d. The holding part is provided with a locking mechanism for fixing the record in the axial direction, e. The center pin has a pusher that is pushed by the protrusion of the record and moves forward along the center pin. f) the pusher is configured to apply the force of the turn spring to the tone arm by the action of an inclined surface after the record is placed in the holder and before the record is fixed by the latching mechanism; g. The stylus force of the playback needle pushed out from the recess and anastomosed with the recording surface of the record causes the turntable to push out the recording surface of the record. h) urging the turntable toward the recording surface of the record; h) urging the turntable toward the recording surface of the record; a spring is connected to the electric motor such that a side circumferential surface of its output shaft comes into elastic contact with the turntable from behind, and i. a start switch that is turned on when the record is pushed and tilted by the turntable, and turned off when the record is removed from the record holder and the stylus pressure is released, and the pressure on the turntable is released; When the tone arm reaches the playback end point of the record, it is pushed and turned off, and the record is removed from the record holder and the stylus pressure is released, causing the tone arm to move toward the recessed part. The structure includes a stop switch that is turned on when the switch is switched on. 5. The simple record player according to claim 4, wherein the stop switch is pressed by the tone arm on a lever extending along the outer peripheral edge of the turntable. 6. The simple record player according to claim 4, wherein the record has a thickness such that the record protrudes from the casing while being fixed to the record holder. 7. A record has multiple recording grooves, and by aligning their playback introduction parts with the position of the playback needle,
A simple record player according to claim 4, which is capable of reproducing desired recorded content.